Created attachment 134739 [details] kernel log I know quite a few r300 cards have issues on AGP PPC-hardware, but this is a PCIe card so I decided to post a bug report nevertheless. It's a Radeon X600 running in a PowerMac G5 11,2 (PCIe) on kernel 4.13.5, xorg-server-1.19.4, libdrm-2.4.83, xf86-video-ati-7.10.0. Kernel log shows no error initializing the card (see dmesg.txt), but when starting Xorg the machine freezes not later than a few secs. It's a complete freeze, accessing the machine via ssh is no longer possible after the freeze happened: [ 280.815899] radeon 0001:06:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none [ 294.948188] radeon 0001:06:00.0: ring 0 stalled for more than 10133msec [ 294.948202] radeon 0001:06:00.0: GPU lockup (current fence id 0x0000000000000002 last fence id 0x0000000000000003 on ring 0) [ 295.181717] radeon: wait for empty RBBM fifo failed! Bad things might happen. [ 295.412441] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 295.413597] radeon 0001:06:00.0: Saved 27 dwords of commands on ring 0. [ 295.413618] radeon 0001:06:00.0: (r300_asic_reset:422) RBBM_STATUS=0x8802C12F [ 295.913610] radeon 0001:06:00.0: (r300_asic_reset:441) RBBM_STATUS=0x8802C12F [ 296.409606] radeon 0001:06:00.0: (r300_asic_reset:453) RBBM_STATUS=0x8802C12F [ 296.409647] radeon 0001:06:00.0: GPU reset succeed [ 296.409651] radeon 0001:06:00.0: GPU reset succeeded, trying to resume [ 296.410230] radeon 0001:06:00.0: c000000458090000 unpin not necessary [ 296.410251] radeon 0001:06:00.0: (r300_asic_reset:422) RBBM_STATUS=0x8802C12F [ 296.910240] radeon 0001:06:00.0: (r300_asic_reset:441) RBBM_STATUS=0x8802C12F
Created attachment 134740 [details] xorg.conf
Created attachment 134741 [details] xorg log
Created attachment 134742 [details] kernel config
Had some time to test kernels 4.14.4 and 4.15-rc2. Sadly nothing new concerning this issue.
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